CN104013089B - A kind of pipe tobacco hot blast alternating temperature drying device and alternating temperature drying test method thereof - Google Patents
A kind of pipe tobacco hot blast alternating temperature drying device and alternating temperature drying test method thereof Download PDFInfo
- Publication number
- CN104013089B CN104013089B CN201410206839.0A CN201410206839A CN104013089B CN 104013089 B CN104013089 B CN 104013089B CN 201410206839 A CN201410206839 A CN 201410206839A CN 104013089 B CN104013089 B CN 104013089B
- Authority
- CN
- China
- Prior art keywords
- drying
- pipe tobacco
- tobacco
- temperature
- temperature drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of pipe tobacco hot blast alternating temperature drying device and alternating temperature drying test method thereof, this device comprises tobacco shreds drying case, damp-heat air control and induction system, feature is: tobacco shreds drying case is separated into two high and low temperature hothouses that baking temperature is different; Damp-heat air control and induction system comprise that air compressor, MCS and two groups of air heaters form, and two groups of air heaters are communicated with to realize alternating temperature heating with high and low temperature hothouse respectively; In tobacco shreds drying case, be provided with container and humiture probe. Its alternating temperature drying test method is that tobacco shreds drying process is divided into two sections is that leading portion high temperature drying, back segment reduce the dry pipe tobacco of baking temperature until target moisture content, provide this alternating temperature drying means not only can improve the physical characteristic of pipe tobacco, improve the resistance to processability of pipe tobacco, can also improve the organoleptic quality of the pipe tobacco that is dried, for optimization of enterprises technical process provides a kind of basic experimental technique, provide relevant basic research data for pipe tobacco alternating temperature is dry.
Description
Technical field
The present invention relates to tobacco (or living beings of similar tobacco) manufacture field, specifically a kind of pipe tobacco hot blast alternating temperature is dryDevice and alternating temperature drying test method thereof.
Background technology
The dry process of utilizing heat energy to reduce or remove water-containing materials moisture that is often referred to, dry run is the general list of applicationUnit operation, is widely used at industrial or agricultural everyway, relate to chemical industry, food, agricultural, light industry, building, coal, weaving,The every field such as timber. Tobacco shreds drying is the critical process in Cigarette processing, and the moisture content of cut tobaccos after cutting is higher, need to pass throughDrying, makes moisture content of cut tobaccos uniformity, with the requirement that adapts to roll and the aesthetic quality who improves cut tobacco. OrderThe drying property of front pipe tobacco mainly discloses in freeze-day with constant temperature process, and in drying equipment, the temperature of drying medium is basicConstant. But there is a lot of problems through the long-term freeze-day with constant temperature that experimental studies have found that: the first, in the dry run of pipe tobaccoBecause dry environment temperature remains unchanged, cause dry environment can not adapt to the variation of material state. In the tobacco shreds drying later stage,Because the moisture content of pipe tobacco reduces greatly, be used for greatly the lifting of pipe tobacco temperature for the heat of transpiring moisture, causePipe tobacco okioplast is to internal contraction, and it is more and more less that space between cells becomes, and internal moisture is transmitted and become more difficult to outside, thisSample will cause the physical characteristic of pipe tobacco to have greatly changed, and finally has influence on the resistance to processability of pipe tobacco. The second, continueHigh temperature drying can exert an adverse impact to the aroma component of pipe tobacco and conventional chemical composition, and finally has influence on cigaretteOrganoleptic quality.
Alternating temperature is dry is a kind of novel dry technology, is utilized by industry-by-industry more and more widely. TraditionalDrying means is: adopt constant drying medium temperature material to be dried until desired moisture. The base that alternating temperature is dryThis thinking is: according to the residing different drying stages of material, adopt different medium temperatures to realize the method for dried material, alsoBe exactly first by relatively high medium temperature, material to be dried, while waiting material water ratio to be reduced to a certain Appropriate, reduce dryDry medium temperature, dried material is until target moisture content. The dry technique of employing alternating temperature not only can be improved the material that is driedPhysical characteristic, further improves the resistance to processability of material, can also improve the organoleptic quality of the material that is dried.
Up to now, the research of the alternating temperature drying process to pipe tobacco is little, and the device dry for pipe tobacco alternating temperature is equallyFew. Therefore can design and a kind ofly be applicable to the dry device of pipe tobacco alternating temperature and design corresponding alternating temperature drying test sideMethod has caused the concern about insider.
Summary of the invention
Object of the present invention, just based on above-mentioned prior art situation, provides a kind of for pipe tobacco hot blast alternating temperature drying deviceAnd alternating temperature drying test method.
The object of the invention is to be achieved through the following technical solutions:
Pipe tobacco hot blast alternating temperature drying device of the present invention, what comprise tobacco shreds drying chamber and be connected with tobacco shreds drying chamber wetsHot-air control and induction system, wherein: tobacco shreds drying chamber by an insulation plate be separated into the different height of two baking temperatures,Low temperature drying chamber; Described damp-heat air control and induction system comprise air compressor, MCS and two groups of airHeater forms, and described MCS is made up of steam generator, heating jacket, steam front pump and temperature controller,Two groups of air heaters are communicated with to realize alternating temperature heating with high and low temperature hothouse respectively; In tobacco shreds drying case, be provided with chargeDevice and humiture probe.
You Yi road air heating system, steam application system and data acquisition are aobvious respectively for described high and low temperature test hothouseShow system control, high and low temperature hothouse is arranged side by side and separates by a plate, can be dry two for the charge basket that holds pipe tobaccoIn dry chamber, move back and forth. High temperature, low temperature drying chamber are the fixed-bed type structure of convection heat transfer' heat-transfer by convection, at high and low temperature hothouseBottom is provided with for the equally distributed dispersion plate of heated air, heated air stream by chamber bottom from bottom to top to containingPipe tobacco in charging basket is dried.
Described container is cylindric container, and container bottom is netted through hole structure, to ensure that thermal current is by chargeDevice bottom enters, and through pipe tobacco in barrel, is discharged by drying box top, reaches and makes the pipe tobacco dry object that heats up.
In described high-temperature drying chamber, be provided with the delivery device for container being pushed to low temperature drying chamber, this pusherStructure is made up of an arc snap ring and connected push rod.
Utilizing above-mentioned alternating temperature drying device to carry out the dry test method of alternating temperature comprises the following steps:
(1) moisture in cut tobacco modulation: with the moisture content of oven method measuring test pipe tobacco, calculate a certain amount of pipe tobacco reach predetermined at the beginning ofNeeded amount of water when beginning moisture content M0, adds water and mixes pipe tobacco, for subsequent use after the sealing 48h that is packed in bag;
(2) device preheating: set high and low temperature hothouse temperature and hot blast wind speed in pipe tobacco hot blast alternating temperature drying device, itsMiddle high-temperature drying chamber hot blast temperature scope is arranged on 100-150 DEG C, and low temperature drying chamber hot blast temperature scope is arranged on 60-100 DEG C,Hot blast wind speed is arranged on 0-1.2m/s scope;
(3) predrying test: after hot blast temperature, hot blast wind speed are stablized, 10g tobacco sample evenly dispenses in lamelliformOn container, container is placed in high-temperature drying chamber; Adopt weight reduction, the time interval of pressing 5-60s under predetermined experimental condition,Measure pipe tobacco at t1, t2, t3 ... the moisture content of the different drying times such as tn, thus the drying curve of pipe tobacco obtained; According to dryDry curve determines that tobacco shreds drying is to a certain specific moisture content M needed drying time of tx;
(4) alternating temperature drying test: separately by 10g pipe tobacco in the indoor heated-air drying of carrying out of high temperature drying, reach when drying timeIn above-mentioned steps (3), when determined time tx, the container that pipe tobacco is housed is transferred to low temperature drying indoor, pipe tobacco is at low temperatureIn hothouse, continue to be dried to 12.5% moisture;
(5) sample analysis: after dry end, pipe tobacco is taken out to packed sealing, as the physical qualities such as tobacco fill value, perfume (or spice)The chemical qualities such as taste composition and aesthetic quality's detection sample.
It is dry that apparatus of the present invention can realize the convection current alternating temperature of pipe tobacco, and test method is simple, can improve dryResistance to processability and the organoleptic quality of rear pipe tobacco, for optimization of enterprises drying process provides a kind of basic experimental technique. DryThe experimental condition of device can be contained the working condition such as hot blast temperature, wind speed of actual production process, and test specimen amount can expireFoot is compared with multianalysis test request.
Brief description of the drawings
Fig. 1 hot blast alternating temperature drying device front view.
Fig. 2 hot blast alternating temperature drying device side view.
Fig. 3 is MCS schematic diagram.
Fig. 4 is delivery device schematic diagram.
In Fig. 1-4: 1. air compressor, 2. mass flowmenter, 3. MCS, 3-1. steam generator, 3-2.Temperature controller, 3-3. plunger displacement pump, 3-4. heating jacket, 4. heater, 5. temp probe, 6. temperature and humidity control instrument, 7. high temperature is dryDry chamber, 8. low temperature drying chamber, 9. insulation plate, 10. delivery device, 11. containers, 12. dispersion plates, 13. humitures are visitedHead, 14. conical pipes
Fig. 5 is the filling value of pipe tobacco under different drying conditions.
Fig. 6 is the total amount of flavor component under different drying conditions.
Detailed description of the invention
Alternating temperature drying device of the present invention is described further below in conjunction with accompanying drawing:
As described in Fig. 1,2: a kind of pipe tobacco hot blast alternating temperature drying device, comprise tobacco shreds drying case and with tobacco shreds drying case phaseThe damp-heat air control and the induction system that are communicated with, wherein: tobacco shreds drying case is separated into two dry temperature by an insulation plate (9)Spend different high and low temperature hothouse (7,8); Described damp-heat air control and induction system comprise air compressor (1), humidity controlSystem processed (3) and two groups of air heaters form, and described MCS (3) is by steam generator (3-1), heating jacket(3-4), steam plunger pump (3-3) and temperature controller (3-2) composition (referring to Fig. 3), two groups of air heaters (4) respectively withHigh and low temperature hothouse is communicated with to realize alternating temperature heating; In tobacco shreds drying case, be provided with container (11) and humiture probe（13）。
In high-temperature drying chamber (7), be provided with the delivery device (10) for container being pushed to low temperature drying chamber (8),This delivery device forms (referring to Fig. 4) by an arc snap ring and connected push rod.
Container is tubbiness container, and container bottom is netted through hole structure, to ensure that thermal current is by container bottomEnter, through pipe tobacco in barrel, discharged by drying box top, reach and make the pipe tobacco dry object that heats up.
Be provided with for the equally distributed dispersion plate of heated air (12) in high and low temperature hothouse bottom. Two groupsAir heater passes into respectively high and low temperature hothouse bottom by two groups of conveyance conduits.
The course of work is described below by reference to the accompanying drawings: compressed air is inputted hot blast alternating temperature drying device, gas by air compressorBody can divide two-way to enter respectively two heaters, regulates respectively two heater powers to make the temperature of the gas that enters hothouseMeet dry requirement (left hothouse is high-temperature drying chamber, and right hothouse is low temperature drying chamber); Adjusting MCSSteam is sprayed into air heater inside by steam generator and plunger displacement pump, makes respectively to enter the gas humidity symbol of left and right two hothousesClose dry requirement, the heating jacket on jet chimney and temperature controller are controlled the temperature of steam to avoid steam-condensation; PointOther quality of regulation flowmeter, thus make dry gas pass through two of left and right hothouse with certain flow velocity. Treat by left and right two dryThe gas temperature of dry chamber, humidity, flow velocity all meet while requirement separately, and the pipe tobacco of the certain moisture content of certain mass is put into chargeDevice, puts into the dry pipe tobacco of left hothouse (high-temperature drying chamber) by container, because pipe tobacco initial aqueous rate is known, so adoptWeight reduction is measured the moisture content of pipe tobacco, in the time recording moisture content of cut tobaccos and arrive a certain Appropriate, takes out out and connects left and right hothouseInsulation plate, utilize push rod that container is pushed to right hothouse, draw back push rod, close insulation plate, allow pipe tobacco existUnder the drying condition of right hothouse (low temperature drying chamber), be dried until target moisture content.
Utilizing above-mentioned alternating temperature drying device to carry out the dry test method of alternating temperature comprises the following steps:
(1) moisture in cut tobacco modulation: with the moisture content of oven method measuring test pipe tobacco, calculate a certain amount of pipe tobacco reach predetermined at the beginning ofNeeded amount of water when beginning moisture content M0, adds water and mixes pipe tobacco, for subsequent use after the sealing 48h that is packed in bag;
(2) device preheating: set high and low temperature hothouse temperature and hot blast wind speed in pipe tobacco hot blast alternating temperature drying device, itsMiddle high-temperature drying chamber hot blast temperature scope is arranged on 100-150 DEG C, and low temperature drying chamber hot blast temperature scope is arranged on 60-100 DEG C,Hot blast wind speed is arranged on 0-1.2m/s scope;
(3) predrying test: after hot blast temperature, hot blast wind speed are stablized, 10g tobacco sample evenly dispenses in lamelliformOn container, container is placed in high-temperature drying chamber; Adopt weight reduction, the time interval of pressing 5-60s under predetermined experimental condition,Measure pipe tobacco at t1, t2, t3 ... the moisture content of the different drying times such as tn, thus the drying curve of pipe tobacco obtained; According to dryDry curve determines that tobacco shreds drying is to a certain specific moisture content M needed drying time of tx;
(4) alternating temperature drying test: separately by 10g pipe tobacco in the indoor heated-air drying of carrying out of high temperature drying, reach when drying timeIn above-mentioned steps (3), when determined time tx, the container that pipe tobacco is housed is transferred to low temperature drying indoor, pipe tobacco is at low temperatureIn hothouse, continue to be dried to 12.5% moisture;
(5) sample analysis: after dry end, pipe tobacco is taken out to packed sealing, as the physical qualities such as tobacco fill value, perfume (or spice)The chemical qualities such as taste composition and aesthetic quality's detection sample.
As shown in Figure 5: to the freeze-day with constant temperature under different hot blast temperatures, tobacco fill value increases with the increase of hot blast temperatureAdd. This is because baking temperature is higher, and pipe tobacco rate of water loss is faster, and pipe tobacco changes under the effect of stress producing in inner humitureTexturized degree is higher, thereby the fillibility of pipe tobacco is increased. Under different alternating temperature drying conditions, the filling value of pipe tobacco is all highFreeze-day with constant temperature result under back segment low temperature hot blast condition, and lower than freeze-day with constant temperature result under leading portion high-temperature hot-air condition. For 100DEG C-70 DEG C of alternating temperature drying conditions, tobacco fill value connects and is bordering on 100oC high-temperature hot-air freeze-day with constant temperature result.
As shown in Figure 6: adopt respectively 100 DEG C, 70 DEG C and 70 DEG C of 100 DEG C of back segments of leading portion (separation is that moisture content 19% goes out),Pipe tobacco flavor component total amount when tobacco shreds drying to 12.5% that just moisture content is 30%, under low temperature drying condition as seen from the figurePipe tobacco flavor component total amount, higher than pipe tobacco flavor component total amount under high temperature drying condition, adopts the alternating temperature of leading portion high temperature back segment low temperatureThe total amount of drying mode flavor component is between high temperature drying and low temperature drying, apparently higher than high temperature drying and and low temperature dryingBe close.
Claims (2)
1. a pipe tobacco hot blast alternating temperature drying device, the damp-heat air that comprises tobacco shreds drying case and be connected with tobacco shreds drying caseControl and induction system, it is characterized in that: tobacco shreds drying case by an insulation plate be separated into the different height of two baking temperatures,Low temperature drying chamber; Described damp-heat air control and induction system comprise air compressor, MCS and two groups of airHeater forms, and described MCS is made up of steam generator, heating jacket, steam front pump and temperature controller,Two groups of air heaters are communicated with to realize alternating temperature heating with high and low temperature hothouse respectively; In tobacco shreds drying case, be provided with chargeDevice and humiture probe; In high-temperature drying chamber, be provided with the delivery device for container being pushed to low temperature drying chamber,This delivery device is made up of an arc snap ring and connected push rod;
Described container is tubbiness container, and container bottom is netted through hole structure;
Be provided with for the equally distributed dispersion plate of heated air in high and low temperature hothouse bottom;
Two groups of air heaters pass into respectively high and low temperature hothouse bottom by two groups of conveyance conduits.
2. utilize alternating temperature drying device described in claim 1 to carry out the dry test method of alternating temperature, it is characterized in that: this examinationProved recipe method is to be dried to realize by pipe tobacco being successively placed in high temperature in alternating temperature drying device, low temperature drying chamber,High and low temperature hothouse is You Yi road air heating system, steam application system and the control of data acquisition display system respectively, specifically examinationTest method step as follows:
(1) moisture in cut tobacco modulation: with the moisture content of oven method measuring test pipe tobacco, calculate a certain amount of pipe tobacco and reach predetermined and initially containNeeded amount of water when water rate M0, adds water and mixes pipe tobacco, for subsequent use after the sealing 48h that is packed in bag;
(2) device preheating: set high and low temperature hothouse temperature and hot blast wind speed in pipe tobacco hot blast alternating temperature drying device, Qi ZhonggaoTemperature hothouse hot blast temperature scope is arranged on 100-150 DEG C, and low temperature drying chamber hot blast temperature scope is arranged on 60-100 DEG C, hot blastWind speed is arranged on 0-1.2m/s scope;
(3) predrying test: after hot blast temperature, hot blast wind speed are stablized, 10g tobacco sample evenly dispenses in charge with lamelliformOn device, container is placed in high-temperature drying chamber; Adopt weight reduction, in the time interval of pressing 5-60s under predetermined experimental condition, measurePipe tobacco is at t1, t2, t3 ... the moisture content of the different drying times such as tn, thus the drying curve of pipe tobacco obtained; According to dry bentLine determines that tobacco shreds drying is to a certain specific moisture content M needed drying time of tx;
(4) alternating temperature drying test: separately by 10g pipe tobacco in the indoor heated-air drying of carrying out of high temperature drying, reach above-mentioned when drying timeIn step (3), when determined time tx, the container that pipe tobacco is housed is transferred to low temperature drying indoor, pipe tobacco is in low temperature dryingIndoorly continue to be dried to 12.5% moisture;
(5) sample analysis: after dry end, pipe tobacco is taken out to packed sealing, as physical quality tobacco fill value, chemical qualityFlavor component and aesthetic quality's detection sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410206839.0A CN104013089B (en) | 2014-05-16 | 2014-05-16 | A kind of pipe tobacco hot blast alternating temperature drying device and alternating temperature drying test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410206839.0A CN104013089B (en) | 2014-05-16 | 2014-05-16 | A kind of pipe tobacco hot blast alternating temperature drying device and alternating temperature drying test method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104013089A CN104013089A (en) | 2014-09-03 |
| CN104013089B true CN104013089B (en) | 2016-05-04 |
Family
ID=51430316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410206839.0A Active CN104013089B (en) | 2014-05-16 | 2014-05-16 | A kind of pipe tobacco hot blast alternating temperature drying device and alternating temperature drying test method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104013089B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266933B (en) * | 2014-10-28 | 2017-02-01 | 中国烟草总公司郑州烟草研究院 | Device and method for on-line detection of water content of materials during vacuum drying |
| CN107462598B (en) * | 2017-07-17 | 2019-10-29 | 河南中烟工业有限责任公司 | A kind of method of pipe tobacco heating degree in measurement convective drying |
| CN109870382B (en) * | 2019-04-12 | 2021-06-15 | 中国烟草总公司郑州烟草研究院 | Method for rapidly detecting moisture content of cut tobacco based on two-stage temperature method |
| CN110063514A (en) * | 2019-04-29 | 2019-07-30 | 广东中烟工业有限责任公司 | A kind of miniature air stream baking silk experimental provision |
| CN114459219A (en) * | 2022-02-14 | 2022-05-10 | 珠海格力电器股份有限公司 | Control method and controller for compressor heating belt and heat pump drying unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750270Y (en) * | 2004-10-28 | 2006-01-04 | 姜一军 | Composite round low-temperature drier |
| CN101601499A (en) * | 2009-06-26 | 2009-12-16 | 江苏智思机械集团有限公司 | The method and apparatus of drying leaf-silk stage by stage |
| CN101611921A (en) * | 2009-07-24 | 2009-12-30 | 秦皇岛烟草机械有限责任公司 | Sectional type low temperature roller cut tobacco drying equipment |
| CN201397263Y (en) * | 2009-03-16 | 2010-02-03 | 中国烟草总公司郑州烟草研究院 | Fixed bed type tobacco heat-moisture treatment device with convection heat transfer manner |
| CN101926499A (en) * | 2010-08-27 | 2010-12-29 | 江苏智思机械集团有限公司 | Sectional cylinder cut tobacco dryer |
| CN102445370A (en) * | 2011-10-11 | 2012-05-09 | 中国烟草总公司郑州烟草研究院 | Tobacco pressure drying processing apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100645516B1 (en) * | 2006-05-16 | 2006-11-15 | 주식회사 탑트레이딩이엔지 | Temperature and Flow control System of mixed air for organic emissions from building materials |
| CN103932378B (en) * | 2014-04-29 | 2016-02-24 | 湖北中烟工业有限责任公司 | The detection method of slag-containing rate in papermaking-method reconstituted tobaccos tobacco material extract |
-
2014
- 2014-05-16 CN CN201410206839.0A patent/CN104013089B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750270Y (en) * | 2004-10-28 | 2006-01-04 | 姜一军 | Composite round low-temperature drier |
| CN201397263Y (en) * | 2009-03-16 | 2010-02-03 | 中国烟草总公司郑州烟草研究院 | Fixed bed type tobacco heat-moisture treatment device with convection heat transfer manner |
| CN101601499A (en) * | 2009-06-26 | 2009-12-16 | 江苏智思机械集团有限公司 | The method and apparatus of drying leaf-silk stage by stage |
| CN101611921A (en) * | 2009-07-24 | 2009-12-30 | 秦皇岛烟草机械有限责任公司 | Sectional type low temperature roller cut tobacco drying equipment |
| CN101926499A (en) * | 2010-08-27 | 2010-12-29 | 江苏智思机械集团有限公司 | Sectional cylinder cut tobacco dryer |
| CN102445370A (en) * | 2011-10-11 | 2012-05-09 | 中国烟草总公司郑州烟草研究院 | Tobacco pressure drying processing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104013089A (en) | 2014-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104013089B (en) | A kind of pipe tobacco hot blast alternating temperature drying device and alternating temperature drying test method thereof | |
| CN107577257B (en) | A kind of investigating method that the grain based on temperature zone is continuous drying | |
| CN103610227B (en) | Cut tobacco dryer head and tail section process variable optimizing control method | |
| CN100584224C (en) | Cut tobacco drying control method | |
| CN104457198B (en) | A kind of Multi-information acquisition Based Intelligent Control drying machine | |
| CN104501560B (en) | The drying device that in a kind of casing, temperature intelligent regulates | |
| CN103504460A (en) | Method and test device for heating and baking tobacco through heat pump method | |
| CN104534844B (en) | A kind of drying unit that transfer rate is automatically adjusted | |
| CN103371428B (en) | For the control method of stable cylinder class tobacco shreds drying hot blast humidity | |
| CN206880575U (en) | One kind scorches integral continuous tunnel furnace | |
| CN203897260U (en) | Hot air variable-temperature tobacco shred drying device | |
| CN105686041B (en) | Cut-tobacco drier and baking silk method | |
| CN105258500B (en) | The hot air circulating system and its proportional controlling means of automatic fuel gas continuous tunnel furnace | |
| CN104567315B (en) | A kind of automatic control drier able to programme | |
| CN105432822A (en) | Tea leaf baker | |
| CN104534843B (en) | The drying unit of a kind of preheating zone Temperature Distribution Based Intelligent Control | |
| CN104853627B (en) | Method and apparatus for expanding the product containing starch | |
| CN204854257U (en) | Circulation roasting kiln | |
| CN104501561B (en) | The drying plant that a kind of temperature intelligent controls | |
| CN203664156U (en) | Drying oven system of coater | |
| CN209788466U (en) | automatic control system for steam heating | |
| CN203226714U (en) | Multifunctional foodstuff processing all-in-one machine | |
| CN207201906U (en) | A kind of multi-functional steaming system | |
| CN105674745A (en) | Frequency conversion and energy conservation control method for main suction fan of sintering machine | |
| CN203467648U (en) | Testing device for heating and baking tobaccos in heat pump mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |